AD 75-09-12

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AD Number:
75-09-12
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Lockheed L-1011-385 Series Airplanes, Except Models L-1011-385-1-14 and L-1011-385-1-15
Subject:
Autopilot
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
09/02/1976
Make:
Lockheed Martin Corporation
Model:
L-1011-385-1
Product Type:
Aircraft
Product Subtype:
Large Airplane
Affected AD:
Superseded AD:
Affected By:
Superseded By:
Service/Office:
Office of Primary Responsibility:
CFR Part Reference:
Part 39
Comments:
Updated RGL applicability to match AD applicability; CAR C-11-185
AIRWORTHINESS DIRECTIVES FINAL RULES: 75-09-12
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-2703

AD NUMBER:   75-09-12

SUBJECT HEADING:   Lockheed L-1011-385 Series Airplanes, Except Models L-1011-385-1-14 and L-1011-385-1-15

ACTION:  

SUMMARY:  

DATES:   Effective September 2, 1976.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
75-09-12 LOCKHEED-CALIFORNIA: Amendment 39-2186 as amended by Amendment 39-2703. Applies to Lockheed L-1011-385 series airplanes, except models L-1011- 385-1-14 and L-1011-385-1-15, certificated in all categories with Collins FCS-110 autopilot installed.

To preclude exceeding the go-around pitch limits during autopilot coupled go-arounds accomplish the following:

1. Operators shall, by the most immediate and practicable means, notify flight crews of Lockheed Operating Information Letter (OIL) 86.

2. Effective 48 hours after receipt of this telegram the following operating limitation applies: 'Autopilot must be disconnected for go-around' and a placard must be installed in plain view of the pilots stating: 'Autopilot must be disconnected for go-around.'

3. The operating limitation specified in paragraph 2. no longer applies and the cockpit placard may be removed by accomplishment of the following:

i. Replacing the AFCS Trim Augmentation Computer, Lockheed P/N 672443-109 or -113 with 672443-115 computer, in accordance with Lockheed Service Bulletin 093-22-077, dated December 11, 1975, or later FAA-approved revisions; and

ii. Replacing both AFCS Pitch Computers, Lockheed P/N 672314-177, - 179, -181, -183 and -185 with 672314-157, -159, -161, -163 and -165 computers, respectively, in accordance with Lockheed Service Bulletin 093-22-082, dated May 5, 1976, or later FAA- approved revisions.

Amendment 39-2186 became effective April 28, 1975, for all persons except those to whom it was made effective by telegram, dated March 28, 1975.

This amendment 39-2703 becomes effective September 2, 1976.

FOOTER: